Biology:Chilobrachys

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Short description: Genus of spiders

Chilobrachys
Chilobrachys fimbriatus female.jpg
Adult male Chilobrachys fimbriatus.
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Mygalomorphae
Family: Theraphosidae
Subfamily: Selenocosmiinae
Genus: Chilobrachys
Karsch, 1892[1]
Type species
Chilobrachys nitelinus
Karsch, 1892
Species

31, see text

Chilobrachys is a genus of Asian tarantulas that was first described by Ferdinand Anton Franz Karsch in 1892.[2] They are found in India , Myanmar, Malaysia, China , Vietnam, Thailand and Sri Lanka. They are usually medium or large-sized, and they can stridulate by using small spines present on the chelicerae.[3]

Identification features

A Chilobrachys dyscolus tarantula.

They have special stridulating organs in their chelicerae, which are made of short spines. Males have a palpal bulb which ends in a long and slender blade like spine, females have one pair of spermatheca. The anterior eyes form almost a straight line. Their legs have a narrower scapulae at the tip of the metatarsus.[3]

Deaths

Chilobrachys bites may be fatal. some cases have been reported where bites by Chilobrachys hardwickei resulted in gangrene and deaths.[4]

Species

(As of July 2022) it contains thirty-one species, found in Asia:[1]

  • Chilobrachys andersoni (Pocock, 1895)India , Myanmar, Malaysia
  • Chilobrachys annandalei Simon, 1901 – Malaysia
  • Chilobrachys assamensis Hirst, 1909India
  • Chilobrachys bicolor (Pocock, 1895) – Myanmar
  • Chilobrachys brevipes (Thorell, 1897) – Myanmar
  • Chilobrachys dominus Lin & Li, 2022 - China
  • Chilobrachys dyscolus (Simon, 1886) – Vietnam
  • Chilobrachys femoralis Pocock, 1900India
  • Chilobrachys fimbriatus Pocock, 1899India
  • Chilobrachys flavopilosus (Simon, 1884)India , Myanmar
  • Chilobrachys fumosus (Pocock, 1895)India
  • Chilobrachys guangxiensis (Yin & Tan, 2000)China
  • Chilobrachys hardwickei (Pocock, 1895)India
  • Chilobrachys himalayensis (Tikader, 1977)India
  • Chilobrachys huahini Schmidt & Huber, 1996 – Thailand
  • Chilobrachys hubei Song & Zhao, 1988China
  • Chilobrachys jinchengi Lin & Li, 2022 China
  • Chilobrachys jonitriantisvansickleae Nanayakkara, Sumanapala & Kirk, 2019 – Sri Lanka
  • Chilobrachys khasiensis (Tikader, 1977)India
  • Chilobrachys liboensis Zhu & Zhang, 2008China
  • Chilobrachys lubricus Yu, S. Y. Zhang, F. Zhang, Li & Yang, 2021 China
  • Chilobrachys natanicharum Chomphuphuang et al., 2023 Thailand
  • Chilobrachys nitelinus Karsch, 1892 (type) – Sri Lanka
  • Chilobrachys oculatus (Thorell, 1895) – Myanmar
  • Chilobrachys paviei (Simon, 1886) – Thailand
  • Chilobrachys pococki (Thorell, 1897) – Myanmar
  • Chilobrachys sericeus (Thorell, 1895) – Myanmar
  • Chilobrachys soricinus (Thorell, 1887) – Myanmar
  • Chilobrachys stridulans (Wood Mason, 1877)India
  • Chilobrachys subarmatus (Thorell, 1891)India (Nicobar Isands)
  • Chilobrachys thorelli Pocock, 1900India
  • Chilobrachys tschankhoensis Schenkel, 1963China (Nomen dubnium)


In synonymy:

One species has been changed to Selenocosmia:

  • Chilobrachys samarae Giltay, 1935Selenocosmia samarae

See also

References

  1. 1.0 1.1 Gen. Chilobrachys Karsch, 1892. Natural History Museum Bern. 2020. doi:10.24436/2. http://www.wsc.nmbe.ch/genus/3336. Retrieved 2020-01-31. 
  2. Karsch, F. (1892). "Arachniden von Ceylon und von Minikoy gesammelt von den Herren Doctoren P. und F. Sarasin". Berliner Entomologische Zeitschrift 36: 267–310. 
  3. 3.0 3.1 Zhu, Ming-Sheng; Zhang, Rui (2008). "Revision of the Theraphosid Spiders from China (Araneae: Mygalomorphae)". The Journal of Arachnology 36 (2): 425–447. doi:10.1636/CA07-94.1. ISSN 0161-8202. https://www.jstor.org/stable/25434306. 
  4. "Tarantula bite leads to death and gangrene". Indian J Dermatol Venereol Leprol 63 (2): 125-126. 1997. PMID 20944295. 

Wikidata ☰ Q2963625 entry